Bar clamp



FIG. 1 is a perspective view of the bar clamp;

FIG. 2 is a right side elevational view of the bar clamp;

FIG. 3 is a top view of the bar clamp;

FIG. 4 is a bottom view of the bar clamp;

FIG. 5 is a left side elevational view of the bar clamp;

FIG. 6 is a front elevational view of the bar clamp; and,

FIG. 7 is a rear elevational view of the bar clamp. 

CLAIM The ornamental design for a bar clamp, as shown and described. 